Antibursting and antishock device for tanks, pipes, &amp;c.



1. VERR E. ANTIBURS TING AND ANTISHOCK DEVICE FOR TANKS, PIPES, 6L0,

APPLICATION FILED FEB-5,1919.

Patented Aug. 3, 1920.

i 4 III/Ill WA TER //I fall! WITNESSES.- fizaggw IN V EN TOR. fia fUNITED STATES PATENT OFFICE.

JOHN VERSE, 0]? PHILADELPHIA, PENNSYLVANIA.

ANTIBUIBSTING AND ANTISHOCK DEVICE FOR TANKS, PIPES, M.

I devices designed to protect tanks, pipes, etc.,

against bursting by freezing of the water 10 therein, and against thedamages caused, particularly in water pipes, by sudden clos-' ing ofcocks; and 7 One object of my invention is an air-- chamber formed by acylinder, having its lower end located in the center of the tank and theupper end out of it, topped with a tightly closing cap; the cylinderbeing attached to the top of the tank, at an intermediate point of itsown length, where it is provided with an enlargement, screw-threaded tofit the screw-threaded opening of the vtank; a slidable piston beingair-tightly mounted within the air-chamber.

And a further object of my invention is a supplementary cylinder of thesame kind and size of the air-chamber which is the object of thepreviously described feature; sald cylinder to be eventually jointed tothe top of the same air-chamber, tightly closed at the upper end by acap; said cylinder being of a given calculated length; or else a set ofsuch cylinders of diiferent length to cope with the different needs whenthe water in the tank is subjected to increased pressures.

And a further object of my invention is a vertical air-chamber,cylindrical in shape, tightly closed at each end by a cap; with a pistonslidably mounted and having an air-tight engagement with the interior ofthe cylinder; communicating with the interior of the tank by a nipple ornipples connected together, with one end of said nipple screwed at thelower cap of the air-chamber and the other end located in the center ofthe tank, passing through the wall of the tank, where it is alsoscrewed, at any spot of the same tank, provided the lower end, locatedin the tank, be at a lower level than the level ofthe other end. screwedat the bottom of'the air-chamber. i

All these attachments may easily. be apo pipes.

the invention consists in the construction,

i co mbin'ation and arrangement of parts here- Specifleation of LettersPatent.

Patented Aug. 3, 1920.

Application filed February 5, 1919. Serial No. 275,888.

inafter described and claimed and illustrated in the accompanyingdrawings, wherein Figure 1 is a vertical sectional view of a tank,equipped with the air-chamber, the same air-chamber protruding out ofthe tank.

Fi 2 is a vertical sectional view similar to Fig. 1, where theair-chamber has an increased capacity, by means of a supplementarycylinder jointed to the top of the airchamber. A

Fig. 3 is a vertical section showing a tank equipped with the airchamber, which lies entirely out of the tank, but in communication withthe interior of the tank.

Referring more particularly to the drawings by letters to designate thecorrespondin parts of the several views,

i 1 1s a vertical section of a tank T to whicn the air chamber C isattached, screwed at an-intermediate point of its own length to the topof the tank, having its lower end in the middle of the tank, and, theupper end out of same, tightly closed by a cap K, a piston P, formed bya disk of cork d or any soft material, or wood lined, with cork or ametallic frame lined'with cork or any other soft and tough matter,firmly attached to the top of a thinner disk of metal m; a cap ff, openin its middle, is screwed to the lower edge of the air-chamber, to holdthe piston within the same air-chamber.

Fig. 2 is a view sim'lar to Fig. 1, where a supplementary. air-chamber Cof the same kind and size of the air-chamber C though of any requiredlength, is jointed at the top of the C closed by the cap K Fig. 3 is avertical view of a tank T equipped with an air-chamber C (which in thiscase is attached to the top of the tank) by a pipe (or system ofconnected pipes) departing from the bottom of the air-chamber, where itis screwed, screwed-again to the wall of the tank (in this particularcase to the top) and allowing communication of the lower end with thecenter of the tank.

The air-chamber is hermetically closed by a cap at each end; the lowerend cap being pierced to receive the upper end of the pipe or system ofpipes; a piston P is slidably mounted in the air-chamber, having anairtight engagement with its walls.

The air-chambers are cylindrical and in the cases of Figs. 1, 2, 3 musthave a resistance to the internal expanding force, at least equal to theresistance of the tanks.

The pistons are made with a disk of cork or any other soft and toughmatter, or any other matter lined with cork or any other soft and toughmatter; the lower part of it being a solid and strong and heavy disk;both firmly attached together.

The purpose of the supplementary cylinders is to obviate the danger ofbursting of the tank and air-chamber, when the water in the tank issubjected to an increased pressure.

To safely protect a tank or receptacle, the space left for the air inthe air-chamber, when the tank is filled and working under pressure,must be at least 15 per cent. of the space left for the water; if, forany reason the pressure is increased, the air is compressed in a lesserspace, impairing the safety of the tank; in order to give more space tothe air, the supplementary air-chamber is to be jointed to the other onealready attached to the tank, so that the same proportion 15 per 100 berestored.

It is easy to see how the dispositions of the attachment in Figs. 1, 2,3 is recommendable, as it affords means to inspect, clean, repair thepiston and the interior of the airchamber; or remove and change theentire apparatus; or add one or more supplementary air-chambers to copewith the new higher pressures; and how the attachment can be applied, asshown in Fig. 3 to a tank already completely built and in operation,with a great saving of work, time, and money, without dismantlingit.

'In reducing my invention to practice,

various minor changes may be resorted to in the construction,combination and arrangement of parts, without departing from the spiritand scope of the invention as claimed.

lVhat I claim for my invention is 1. An air chamber cylindrical inshape, screwed or otherwise attached to the top of a tank, having itslower end within the tank; and its upper end out of it and tightlyclosed by a cap and means closing the lower end.

2. An air chamber cylindrical in shape, screwed or otherwise attached tothe top of a tank; having its lower end within the tank and its upperend out of it; with a cap tightly closing the upper end and a slidablepiston tightly closing the lower end.

An air chamber cylindrical in shape, screwed or otherwise attached tothe top of a tank, having its lower end within the tank and its upperend out of it and tightly closed by a cap; with a slidable pistontightly closing the lower end and a ring screwed or otherwise attachedto the lower end of the air cham er; or four screws screwed at the samelower end, protruding somewhat within the said air chamber, to hold thepiston within it.

In testimony whereof I have hereunto signed my name.

JOHN VERRE. Witnesses:

P. PUGGIERO, OARMINE VUsooLo.

